Everything you need to know about CBD: benefits, uses & research 2025
CBD (cannabidiol) is one of the most studied cannabinoids: it is of interest for stress reduction , pain relief and improved sleep , without psychotropic effects (unlike THC).
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What is CBD?
CBD is a phytocannabinoid found in hemp. Unlike THC , It is not psychoactive and does not cause euphoria. It is often extracted in the form of sublingual oil . but it also exists in capsules , infusions or topical form .
CBD vs THC — the essentials
- CBD : non-psychoactive, calming/stabilizing; studied for stress, sleep, comfort ( anxiety study ).
- THC : psychoactive (CB1), alters perception; specific legal framework ( pharmacological review ).
Legality in Switzerland
In Switzerland, CBD products are generally legal if the THC content of the finished product is less than 1% . In the EU, many countries align with 0.3% (national variable schemes).
How does CBD work in the body?
CBD modulates the endocannabinoid system (ECS) , a network involved in homeostasis (internal balance): mood, sleep, pain, appetite, immunity. Review on ECS: British Journal of Clinical Pharmacology .
Receivers & Targets
- CB1 / CB2 : indirect modulation, different possible pathways of action.
- Other targets : TRP channels, serotonergic receptors (5-HT), etc., which may contribute to the observed effects.
Potential benefits (studies & uses)
Stress & anxiety
Clinical studies are exploring the anxiolytic effect of CBD (social anxiety, sleep quality). Essay/social anxiety: PubMed . 👉 Useful products: CBD Stress & Anxiety .
Sleep & insomnia
By reducing stress and pain , CBD can contribute to more restful sleep . Clinical study (sleep/anxiety): PubMed . 👉 See the Sleep collection and our articles: CBD & sleep (guide) Restful sleep .
Pain & inflammation
CBD is being studied for its anti-inflammatory properties and potential benefits in treating certain types of pain . Anti-inflammatory review: PubMed . 👉 Related products: Pain management selection , balms & cosmetics .
Neurology (epilepsy) & other avenues
Pharmaceutical preparations based on CBD are authorized for certain types of epilepsy . Clinical trial (Epidiolex): PubMed . Other areas (acne, metabolism, neuroprotection) remain exploratory .
Advanced Benefits & Recent Discoveries (2025)
Neuroprotection, cognition and aging
Recent data suggest a potential for neuroplasticity and reduction of oxidative stress. Review 2025: PubMed .
Cardiovascular health
Modest decrease in blood pressure observed in healthy adults (pilot study): PubMed .
Anti-inflammatory & tissue protection
Preclinical signals regarding inflammation/fibrosis/muscle damage: PubMed . Clinical validations are still necessary.
Liver safety: vigilance
At high doses and over the long term, elevated liver enzymes were observed in a minority of participants: security review . Medical supervision is advised in case of daily use and polypharmacy.
CBD & cancer: recent research and limitations
Growing interest, but distinguish between preclinical data and clinical evidence . Review: CBD & cancer (PubMed) . At this stage, there is no robust evidence that CBD cures cancer.
Mechanisms under investigation (preclinical)
- Apoptosis (programmed cell death) of certain tumor cell lines; modulation of angiogenesis.
- Modulation of the tumor microenvironment (inflammation, cell signaling).
- Potential synergies with treatments (sensitization to certain therapies).
Trials & Uses
Evaluation of CBD on symptoms (pain, sleep, mood) in an adjunctive role, under medical supervision.
Boundaries
- Few controlled trials in humans; limited extrapolation of animal models.
- Open questions: dose , bioavailability , formulation .
- Possible drug interactions and liver toxicity at high doses.
Key message: Discuss all uses with your oncologist. Never change a treatment without medical advice.
Dosage & precautions
- Start low (e.g., 5–10 mg/day), increase gradually.
- Choose the form : sublingual (fast), capsule (precise/long), infusion (gentle), topical (local).
- Possible interactions : see PubMed security review.
- Side effects are often mild: dry mouth, drowsiness, low blood pressure .
Legality & quality
Switzerland : CBD products are legal if THC < 1% . EU : often 0.3% (variable). Prioritize lab analysis and traceability .
Conclusion & Recommendations
CBD offers an interesting natural approach to calming , sleeping , and comfort . Start with a low dose, choose quality products , and listen to your body.
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FAQ
Does CBD get you high?
No. CBD is not psychoactive, unlike THC.
Is CBD legal in Switzerland?
Yes, if the final product complies with the THC threshold (< 1%).
Which form of CBD should I choose?
Sublingual (fast, adjustable), capsules (precise/long), infusion (gradual), topical (local), inhalation (fast).
Does CBD have any side effects?
Generally mild: drowsiness, dry mouth, low blood pressure. Consult a doctor if you are taking medication.
What dosage should I start with?
Start with a low dose (e.g., 5–10 mg/day) and gradually increase according to your goals.
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